Method for preparing aromatic compounds

Details Method for preparing aromatic compounds Method for preparing aromatic compounds

1998-06-17

2000-04-11

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

558420, 562484, C07D49304

Patent

active

060489863

ABSTRACT:
A method for preparing aromatic compounds including 1,4-difluoropyromellitic dianhydride represented by formula (12): ##STR1## and 1,4-difluoropyromellitic acid represented by formula (15): ##STR2## by dehydrating or hydrolyzing and dehydrating precursors.

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